Display device and driving method therefor

a technology of a display device and a driving method, which is applied in the direction of electric digital data processing, instruments, computing, etc., can solve the problems of blurring of a moving image, hard to display moving images, and superimposition of one image on the other

Active Publication Date: 2014-11-25
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach enhances the display of moving images by compensating for slow charging times and minimizing luminance differences, resulting in improved image quality and reduced blurring.

Problems solved by technology

However, since the response time of the liquid crystal molecules in the LCDs is not particularly fast, it is hard to display moving images.
Furthermore, LCDs retain images for some time, for example, one frame, resulting in blurring of a moving image.
Although data voltages of equal magnitudes may be applied to the LC capacitors in the same pixel row, when the pre-charging voltages are different from each other a luminance difference occurs among the pixels resulting in superimposition of one image on another.

Method used

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  • Display device and driving method therefor
  • Display device and driving method therefor
  • Display device and driving method therefor

Examples

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Embodiment Construction

[0016]In the drawings, the thickness of layers and regions are exaggerated for clarity. Like numerals refer to like elements throughout. It will be understood that when an element such as a layer, film, region, substrate, or panel is referred to as being “on” another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being “directly on” another element, there are no intervening elements present.

[0017]Referring to FIG. 1, an LCD according to an embodiment of the present invention includes an LC panel assembly 300, and a gate driver 400 and a data driver 500 connected thereto, a gray voltage generator 800 connected to the data driver 500, and a signal controller 600 for controlling the above-described elements. The LC panel assembly 300, as shown in FIG. 2, includes a lower panel 100, an upper panel 200, and a liquid crystal layer 3 interposed therebetween, a plurality of signal lines G1-Gn and D...

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Abstract

A display device includes an image signal modifier for modifying input image signals based on the difference between the input image signal for a pixel in a first row and the input image signal for the pixel in the adjacent row. The gate-on voltages includes a pre-charging voltage and a main charging voltage, the main charging voltage for the first row overlaps the pre-charging voltage for the second row and the pre-charging voltage for the first grow overlaps the main charging voltage for the second row for a predetermined time. The first data voltage is applied to the pixels of the first and second rows after application of the main charging gate-on voltage for the first row and the pre-charging gate-on voltage for the row, and the second data voltage is applied to the pixel of the second row after application of the main charging gate-on voltage for the second row.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims priority from Korean Patent Application No. 2005-0079412, filed on Aug. 29, 2005, the disclosure of which is hereby incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to a display device and a driving method therefor.DESCRIPTION OF RELATED ART[0003]Generally, a liquid crystal display (LCD) includes two panels provided with pixel electrodes and a common electrode (referred to as “filed generating electrodes”), and a liquid crystal (LC) layer with dielectric anisotropy interposed therebetween. The pixel electrodes are arranged in a matrix and are connected to switching elements such as thin film transistors (TFT) through a plurality of gate lines and a plurality of data lines which sequentially receive data signals on a row by row basis. The common electrode covers the entire surface of an upper panel of the two panels and is supplied with a common voltage...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): G09G3/36
CPCG09G2310/0205G09G3/3648G09G2310/0251G09G2320/0285G09G2320/0223G09G3/20G09G3/36
InventorLEE, BAEK-WOON
OwnerSAMSUNG DISPLAY CO LTD